In the Adriatic Sea, shifts in benthic community structure have been attributed to multiple stressors, from the effects of climate change to the impacts of commercial fishing. Some fishing practices, such as bottom trawling, have caused a widespread decline in exploited fish stocks. Bottom trawling is also expected to have negative impacts on benthic habitats, usually structured by and hosting ...

Abstract Fisheries resources in Hong Kong have been overexploited since the 1970s due to intensive bottom trawling and other fishing activities that depleted stocks destroyed marine habitat. To rehabilitate fisheries resources, a permanent ban on territorial waters came into force December 31, 2012. In order determine whether trawl facilitated recovery of fish communities, surveys were conducte...

The spatial distributions of (1) surface sediment characteristics (D0.5, Sediment Surface Area (SSA), Particulate Organic Carbon (POC), Chlorophyll-a (Chl-a), Phaeophytin-a (Phaeo-a), Total and Enzymatically Hydrolyzable Amino Acids (THAA, EHAA), δ13C) (2) profile image (apparent Redox Potential Discontinuity (aRPD), numbers depths biological traces) were quantified based on the sampling 32 sta...

The sturgeon stock assessment was performed to aim at estimation of absolute and relative abundance and determination of species composition at lower 10 m depths using the Si-Sara2 RV vessel in the Iranian coasts of the Caspian Sea in Guilan, Mazandaran and Golestan provinces during 6-30 September 2011-2012. In this study, 40 stations were selected on the basis of stratified random sampling des...

Bottom trawling is one of the most significant anthropogenic pressures on physical seafloor integrity. The objective classification impact important to monitor ongoing fishing activities and assess regeneration integrity in Marine Protected Areas. We use high-resolution bathymetric data recorded by multibeam echo sounders parameterize morphology trawl mark incisions associated mounds Fehmarn Be...

Catch monitoring during demersal trawling is important to help fishers around the globe cope with high bycatches. Information about catch composition towing will allow identify and react presence of unwanted undertake actions avoid them trawling. In trawl fisheries, by optical devices typically challenged poor quality underwater observations due sediment mobilized process. this study we develop...